Anyone would give me a clue how to know that...just purchase a 72 mav grabber,302 c4...does the axle come posi or not and what is the good number thanks for the help.
Never came with a posi from the factory. Most likely has a 2:79. If you clean the tag off that's attached to the stud on the rear carrier, it'll give the gear ratio. Likely to say 2:79 but may be a 3:00 too.